Shift (Hot Rides #2) by Sidney Bristol

Tori Chazov isn’t exactly the girl next door. For one, if the neighbors found out she’s an FBI asset and the daughter of a KGB defector, she’d have to grab her go bag and run. Then there’s her day job: making magic happen under the hood of big beautiful muscle cars. She’s more likely to be wearing engine grease than mascara, and most guys don’t fantasize about their mechanics.

But then most girls don’t fantasize about FBI tech geniuses, either, and Tori has it bad for Emery Martin. Emery has a past. She can see it in the way he keeps his body honed like a weapon, in the mysterious scars under his snap-button shirts. She can see it in the way his eyes follow her around the room, even though he never says a word.

He’s going to have to start talking now, though. A vicious Russian hit squad is on the way to Miami to take Tori out for good. And without Emery’s help, she might not make her last great escape . . .